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Sea bass product

Sea bass product -
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Tanatat
Inteqc group
Date: December 19, 2021
Description:

Sea bass product with non-sysmetry shape.

Discussion created on 12/20/2021

We trial products with high fat. The fat before extruding around 7-8%. Using a single screw with high shear screw configuration and with die design for floating fish. The issue with the product is the size between the front and end is not symmetrical. What is the root cause of this issue? Is that from machine process or raw material?

Inteqc group
Inteqc group
Faizan Ali Faizan Ali
Student
December 20, 2021

What's the moisture of the mix before extrusion?

Reply
December 21, 2021
Faizan Ali
The moisture
before extrusion 22-26%
after extrusion 18-22%
Reply
Faizan Ali Faizan Ali
Student
December 21, 2021

Tanatat. Could you please state the moisture of the mix before the preconditioner? Have you included any starch source for firm texture?

Reply
December 24, 2021
Faizan Ali
The mix moisture around 8%.
The starch source we use normally starch like from corn.
Reply
Faizan Ali Faizan Ali
Student
December 24, 2021
Tanatat you can play with the potato or topioca starch for more firm structure of pellet or texture with 1 to 2 % and see results..
Reply
December 23, 2021
I think that shape variations will be come due to die hole land position may be wornout or land height is not sufficient for bigger dia extruder pellets..
Reply
December 24, 2021
D.V.Sambasivarao
Land height you mean same as land length right?
Do you have number criteria for big diameter to be sufficient?
We used diameter around 7 mm.
Reply
December 25, 2021
Tanatat
Yes..land height is nothing but a land vertical length..need to use land height more than normal for bigger dia pellets....and also it will depend on fat level and type of extruder ( single or twin screw)...you can use 5 mm land for 7 mm dia die in fat levels between 4% to 6%..
Reply
December 29, 2021
D.V.Sambasivarao
Ok thanks for your information.
If the fat in formula is more(more than 6%) i have to increase the land length more right?
Reply
December 25, 2021
Yes
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